环戊酮
- 与 环戊酮 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Mainly engaged in: Hydrogen-imide hydrochloride, o-chlorophenyl cyclopentanone, 3.4 dimethoxy ethyl benzene, butyn single potassium acid, potassium ethyl malonyl, Ding amide, amide isobutyraldehyde , allyl chloroacetate, isopropyl chloroacetate Benzyl aluminum, cyclopentene, cyanide-o-chlorophenyl, o-methyl chloride, sulfuric acid chloride, p-chlorophenol, imidazole, Pinacolone, one chlorine Pinacolone.
主要经营:盐酸氢亚胺、邻氯苯基环戊酮、3.4二甲氧基苯乙酯、丁炔二酸单钾盐、丙二酸单乙酯钾盐、丁酰胺、异丁酰胺、氯乙酸烯丙酯、氯乙酸苄酯异丙醇铝、环戊烯、邻氯苯氰、邻氯苯甲酯氯、硫酸氯、对氯苯酚、咪唑、频呐酮、一氯频呐酮。
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The facts that type I compounds could easily undergo deamination reaction to form α-methylene cyclopentanone derivatives and they could react with glutathione to form an adduct provided sufficient evidence for the hypothesis that the compounds acted as masked α-methylenecyclopen- tanones and reacted with biologically important sulfhydry-containing enzymes, and thus produced anticancer activity.
Ⅰ类化合物在稀溶液中极易进行去胺基化反应形成α-亚甲基环戊酮类化合物。并且Ⅰ类化合物于稀溶液中易与谷胱苷肽进行结合,这些事实为Ⅰ类化合物作为隐蔽的α-亚甲基环戊酮与酶进行加成,从而导致酶失活而具有抗癌活性的设想提供了证据。
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Accord- ing to the observation that the compounds were stable in low pH aqueous solution and their sta- bility decreased when pH increased, and they rapidly decomposed to form α-methylenecyclopen- tanones derivative when pH reached 6 to 7, we postulated that the compounds were unabsorbable in stomack (where pH1-3) and unstable in small intestine (where pH5-8). The decomposed product was indeed inactive.
对Ⅰ类化合物在稀溶液中的稳定性研究表明,低pH时化合物较稳定,随着pH值的升高稳定性逐渐降低,pH6~7时,化合物迅速分解成α-亚甲基环戊酮类化合物,由此而推测Ⅰ类化合物经口给药无效的原因为:它们在强酸性的胃中(pH1-3)呈离子状态,因而不易吸收,经胃的排空运动进入肠道后,随着pH逐渐升高(pH5-8)化合物迅速分解,而分解产物α-亚甲基环戊酮类化合物证明是无效的。
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The observation that 2-Alkylidene or Benzylidene cyclopentanones had little anticancer activity and 2-dimethylaminomethylcyclopentanone hydro- chloride (T59) had low anticancer activity proved that the existance of α,β-unsaturated carbonyl group could enhance the anticancer activity of cyclopentanone Mannich bases.
2-亚烷基、苯亚甲基环戊酮无抗癌活性,2-二甲胺甲基环戊酮盐酸盐(T59)抗癌活性较低,这些事实说明Ⅰ类化合物中的环外不饱和双键是一个增效基团,它的存在能明显增强环戊酮Mannich碱的抗癌活性。
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Five types of compounds were synthesized via modification of the leading compounds, Mannich bases of cyclopentanones. Among the target compounds, one type was aromatic amine derivatives of a leading compound, three were Mannich bases of a - benzylidene cyclopentanone, the fifth was a Mannich base of a - benzyl cyclopentanone.
以具有抗炎活性的环戊酮Mannich碱为先导化合物进行结构改造,设计合成了一类已知化合物的芳胺Mannich碱衍生物,三类α-苯亚甲基环戊酮Mannich碱类化合物,一类α-苄基环戊酮Mannich碱类化合物。22个目标化合物的结构经核磁共振氢谱、红外光谱和质谱检测确证。
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It has been reported that some natural compounds containing α- methylene-γ-butyrolactone,α-methylenecyclopentanone,α- methylenecyclohexanone,α,β-unsaturated cyclic ketone moiety possessed significant antitumour activity and antiinflammatory activity as well.
在众多的天然产物中,一些含有α-亚甲基-γ-丁内酯,α-亚甲基环戊酮,α-亚甲基环己酮,α,β-不饱和环酮结构的天然化合物具有显著的抗癌、抗炎活性。
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The related reaction conditions and factors such as catalysis of some catalysts etc were discussed. In the procedures, 2-pentylidene cyclopentanone intermediate, which could be isomerizated into a 2-pentyl cyclopentenone under acidic conditions, was effectively prepared in the presence of a phase transfer promotor.
讨论了正戊醛和环戊酮在碱性条件下缩合生成2-亚戊基环戊酮的反应温度、碱浓度、相转移催化剂等因素对反应的影响。2-亚戊基环戊酮中间体化合物能在酸催化剂作用下,异构成2-戊基环戊烯酮,其中酸浓度和溶剂等参数对反应影响明显。
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Starain LHG1 could not only utilize the intermediate products of cycloalkanes-clohexanone and cyclopentanone, but also could degrade alkane, aromatic hydrocarbon and phenols, such as liquid paraffin,solid paraffin, naphthalene and phenol.
LHG1菌株能够利用环烷烃代谢的中间产物环己酮和环戊酮。此外,LHG1菌株还能降解液体石蜡、固体石蜡、萘和苯酚等链烃、芳香烃和酚类。
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A synthesis of 2-pentylidene cyclopentanone starting from cyclopentanone and n-valeraldehyde through aldol condensation, followed by dehydration, was studied, and the yield reached 85.6%. 2-Pentenyl cyclopentanone was prepared in a yield of 95.0% from 2-pentylidene cyclopentanone with a hydrogenation methodology. Through Baeyer-villiger oxidation,δ-decalactone was synthesized in a yield of 63.9% from 2-pentenyl cyclopentanone with hydrogen peroxide.
研究了以正戊醛和环戊酮为起始原料,经羟醛缩合、脱水反应合成2-戊叉环戊酮,产率达到85.6%,2-戊叉环戊酮加氢制备2-戊基环戊酮,产率为95.0%,2-戊基环戊酮在双氧水作用下经Baeyer-villiger氧化重排反应合成δ-癸内酯,反应产率为63.9%,合成δ-癸内酯的总产率为52.0%,气相色谱分析纯度为98.7%。
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The fact that the compound, 2-methyl-2-di- methylaminomethyl-5--n-pentylidenecyclo- pentanone hydrochloride (T60) possessed little anticancer activity indicated that the Mannich bases that could formed a methylene group were necessary for anticancer activity.
当环戊酮环上的Mannich碱侧链位置上引入取代基时,抗癌活性显著降低,如化合物2-甲基-2-二甲胺甲基-5--亚戊基环戊酮盐酸盐(T60)几乎无抗癌活性。这说明Mannich碱能形成亚甲基是这类化合物产生抗癌活性所必不可少的条件。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。